Multiple Choice
A ball is thrown straight up,reaches a maximum height,then falls to its initial height.Which of the following statements about the direction of the velocity and acceleration of the ball as it is going up is correct?
A) Both its velocity and its acceleration point upward.
B) Its velocity points upward and its acceleration points downward.
C) Its velocity points downward and its acceleration points upward.
D) Both its velocity and its acceleration points downward.
Correct Answer:

Verified
Correct Answer:
Verified
Q71: A 10-kg rock and a 20-kg rock
Q72: A motorist makes a trip of 180
Q74: Two athletes jump straight up.John has twice
Q75: A ball is thrown straight upward from
Q77: Two cars are traveling at the same
Q78: The area under a curve in a
Q79: Abby throws a ball straight up and
Q80: A ball is thrown upward at a
Q81: To determine the height of a bridge
Q402: If the velocity of an object is